Boiling heat transfer enhancement by utilizing Electrohydrodynamic (EHD) force in micro sized space

Kano, Ichiro

doi:10.1109/ias.2013.6682446

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Experimental Results With Hydrodynamic Theory1

R E La T Io N S H Ip B E Tw E E N H E a T F Lu X A N D C U R1

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2014

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“…This is due to the effect of the nonuniform electric field distribution. We are conducting the experiment with the ideal electrode for generating uniform electric field distribution [25].…”

Section: Experimental Results With Hydrodynamic Theorymentioning

confidence: 99%

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Effect of Electric Field Distribution Generated in a Microspace on Pool Boiling Heat Transfer

Kano

2014

Journal of Heat Transfer

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This study describes the effect of an electric field on nucleate boiling and critical heat flux (CHF) in pool boiling. A dielectric liquid of AE-3000 was used as the working fluid. A heating surface was polished to a surface roughness of 0.05 pm. A microsized elec trode, in which slits were provided, was designed to generate a nonuniform electric field and produce electrohydrodynamic (EHD) effects with the application of high dc voltages. The obtained results confirmed CHF enhancement as the EHD effects increased CHF to 86.2 W/cm2 with a voltage o f -3000 V, which was four times greater than pool boiling in the absence of the electrode. The usual traveling wave on the bubble interface, induced by the Kelvin-Helmholtz instability, was modified by adding the EHD effects. The travel ing wave model exhibits the essential features of the phenomenon and shows good agree ment with the experimental data.

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“…This is due to the effect of the nonuniform electric field distribution. We are conducting the experiment with the ideal electrode for generating uniform electric field distribution [25].…”

Section: Experimental Results With Hydrodynamic Theorymentioning

confidence: 99%

“…To clarify the behavior of bubbles through the slits, a transpar ent glass electrode was prepared, and the bubble behavior around the electrode was captured by a high-speed camera [25], The pho tograph of the glass electrode setup is shown in Fig. 13.…”

Section: R E La T Io N S H Ip B E Tw E E N H E a T F Lu X A N D C U Rmentioning

confidence: 99%

Effect of Electric Field Distribution Generated in a Microspace on Pool Boiling Heat Transfer

Kano

2014

Journal of Heat Transfer

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Boiling heat transfer enhancement by utilizing Electrohydrodynamic (EHD) force in micro sized space

Cited by 1 publication

References 15 publications

Effect of Electric Field Distribution Generated in a Microspace on Pool Boiling Heat Transfer

Effect of Electric Field Distribution Generated in a Microspace on Pool Boiling Heat Transfer

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